Chord-theory visualizer traces an E7alt progression
42.6K views · 761 likes · 472 saves · 87 reposts · Posted Sep 24, 2026 · 0:24 · Art
OUR NOTEA glowing circle of pitch classes draws polygons for each chord of a dense jazz progression; every sound and visual comes from JavaScript Opus wrote, with no samples or libraries.
You can ask Opus 5.5 to write extreme music theory wankery and it will do it in javascript. Theory-porn as a genre?
everything you see and hear is generated from javascript code that claude wrote. no samples, no libraries 🔊THE PROMPT
The creator didn't publish a prompt for this one. The post text is below.
MAKE ONE LIKE THIS
Three steps, using what the creators in this index used.- 1 · Copy the prompt
This creator didn't share a prompt. Start from our template instead.
PROMPT TEMPLATE → - 2 · Direct it like an editor
- Ask for one self-contained HTML file on a fixed 1920×1080 stage.
- Link this video as the reference for pacing and style.
- Send two or three rounds of specific notes.
- 3 · Render it to MP4
A short piece like this can be screen-recorded, or captured frame by frame for exact timing.
TURN AN HTML ANIMATION INTO AN MP4 →
The creator didn't name their tools. Most videos like this are HTML, canvas or SVG animation written by Claude and screen-recorded or rendered to MP4 — how that works.
Indexed Sep 28, 2026, 8:28 AM · Views as of indexing. Video and post © their creator.